Combined work-support and coöperating tool mechanism.



c. B. & I. H. WILLIAMS. COMBINED WORK SUPPORT AND COfiPERATlNG TOOLMECHANISM.

APPLICATION FILED JUNE 12' 1913. 1,142,923.

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C. B. & I. H. WILLIAMS.

COMBINED WORK SUPPORT AND COiiPERATING TOOL MECHANISM.

APPLICATION 'msn mm: 12. 1913.

Patented June "15, 1915.

2 SHEETS-SHEET 2.

- fiwmm wfizesses' (zwwweamz ama THE NORRIS PETERS CO" FHOT0LlTHO..WASHINGTUN, D. C.

CLARENCE B. WILLIAMS, OF FENCE, AND IRA H. WILLIAMS, 0F MAPLE CREEK,SASKATCHEWAN, CANADA.

COMBINED WORK-SUPPORT AND COCPERATING TOOL MECHANISM.

Application filed June 12', 1913.

To all whom it may concern Be it known that we, CLARENCE B. WIL- LIAMSand IRA H. VVILLIAMS, respectively a citizen of the United States and asubject of the King of Great Britain, .respectively residing at Penceand Maple Creek, in the Province of Saskatchewan, Dominion of Canada,have invented certain new and use ful Improvements in Combined VVork-Supports and Cooperating Tool Mechanism, of which the following is aspecification.

This invention relates to a combined work support and cooperating toolmechanism, such as a drill or threading attachment, and the primaryobject of the invention is to provide means for convenientlyconstructing and repairing various devices through manual operation andwherein the work may be readily adjusted throughthe operation of atreadle and a vertically movable post together with advantageous levermechanism interposed between the treadle and post.

The invention consists in the construction and arrangement of theseveral parts which will be more fully hereinafter described andclaimed.

In the drawings: Figure 1 is a side elevation of the improved deviceembodying a drill in connection with the work support.

Fig. 2 is av vertical section through the work support and cooperatingdevices and sup port therefor. Fig. 3 is a front elevation of the worksupport and operating mechanism partially broken away and illustratingdifferent positions in full and dotted lines. Fig. 4 is a transversevertical section on the line 44-., Fig. 3. Fig. 5 is a view similar toFig. 1 showing the drill mechanism re placed by a thread cutter. Fig. 6is a section through a portion of the work support showing the grippingor clamping dogs thereof engaging a bolt head. Fig. 7 is a transversevertical section through the screw cutting head shown by Fig. 5. Fig. 8is a horizontal section on the line 8-8, Fig. 7 Fig. 9 is a horizontalsection on the line 99, Fig. 6.

In all the figures of the drawing the numeral 5 designates an upright orframe for supporting the entire mechanism and provided with a base 6 anda bracket 7 having outstanding arms 8 and 9 in vertical alinement. Thebracket 7 is bolted or other- Specification of Letters Patent.

Patented June 15, 1915.

Serial No. 773,372.

wise secured to'the upright frame or support 5, and located above thesame at a suitable distance is asmaller bracket 10 which is slotted asat 11 to provide upper and lower arms 12 and 13.

Movably mounted in the arms 8 and 9 is a hollow post 14:, and connectingthe opposite ends of said arms are metal strips or frame members 15 and16 which are continued inwardly at their lower extremities and suitablyconnected to form a bottom support 17 The post 11 is vertically slotted,as at 18 and 19, and the-frame members15 and 16 are also slotted atvarious points to accommodate the application thereto of the operatingmechanism for raising and lowering the post 14.

Near the base support 17 a treadle bar 20 is movably mounted in theframe members 15 and 16, being fulcrumed between suitable fulcrumsupports 21 on the frame member 16, as at 22. The opposite portion ofthe treadle bar 20 projects through and moves in a slot 23 in the framemember 15 and the free extremity thereof projects outwardly from saidframe member and is given a quarter twist or otherwise constructed toprovide a flat treadle plate or foot impacting member 24. The treadlebar 20 extends through and works in the slot 18 in the lower portion ofthe post 14:, and a portion of the side wall of the slot 23 in the framemember 15 is formed with a plurality of ratchet teeth 25 for engagementwith a reduced laterally deflected edge 26 formed on the upper part ofthe treadle bar 20 for the purpose of holding the said bar in adjustedposition.

A connecting bar 27 has its lower end pivoted to the treadle bar 20 andat its upper end said connecting bar is movably attached to a rockinglever 28 fulcrumed as at 29 to the upper portion of the framebar 15 findextends through a'slot 80in said frame To the inner end of the rockinglever 28 the upper end of a link 31 is pivotally connected and has itslower end alsomovably secured to one end of a lifting lever 32 which isfulcrumed on the frame bar or member 16 as at 33. The lifting leverextends through the slot 19 of the post 14 and continually bears againstan antifrictional roller 34 mounted within said post so as to ease themovement of the lever relatively to the post in operating the latter.The roller 34 is rotatably held by a bifurcated pendant or portion 35 ofa block or plug 36 loosely mounted in the post 14 and having a bolt 37extending therethrough and projecting outwardly at opposite pointsrelatively to the post, and between this bolt and a collar 38 fixed onthe post a spring 39 is disposed and operates to give the post aresilient support or to arrange the same to have a slightly yieldingaction when adjusted.

The upper portion of the post 14, as clearly shown by Fig. 2, isscrew-threaded to adjustably receive a screw-threaded stem 40 of a worksupport or table 41, the latter having openings or recesses 41 thereinat intervals to receive suitable means for bold ing the work in positionon the support or table. The object of providing this adjusting meansfor the work support or table 41 is to accommodate a preliminary set ofthe Work relatively to the operating mechanism above, and the spring 39permits the table with its work to resiliently depress to avoid jammingthe tool or implement that may be in engagement with the work, as forinstance a drill point or other analogous device.

The lever mechanism or means just explained for elevating and loweringthe post 14 can be positively operated to raise the work support ortable 41 relatively to a tool or other mechanism disposed above the saidsupport or table and which will be presently explained; and if any otheradjustment is needed or becomes necessary the work support or tablealone may be elevated through the medium of the screw stem 40 working inthe upper end of the post.

The mechanism thus far described is common to both forms of the deviceshown and the operation will be precisely the same in both devices.

Figs. 1, 2 and 3 show a simplified form of the work support or table andits operating mechanism.

In the machine as shown by Fig. 1, the arms 12 and 13 of the bracket 10have a rotating spindle 42 mounted therein and provided at the lower endwith a suitable chuck or means for holding a drill 43, the said spindlebeing operated through the medium of a bevel pinion 44 thereon and abevel gear 45 meshing with said pinion and mounted on a. suitable shaft46 held in a bearing arm 47. The bevel gear 45 is rotated through themedium of a crank handle 48 and the drill 43 may be fed as in ordinarystructures through the medium of a hand wheel 49 associated with theupper end of the spindle. The drill 43 is disposed directly over thecenter of the work support or table 41 and instead of the drill point 48any other form of boring tool may be subsfituted either for metal orwood working. Any well known or approved means will be provided inconnection with the hand wheel 49 for feeding the tool directlycooperating therewith.

In the machine shown by Fig. 5, the spindle 42 and the operatingmechanism therefor are similar to that she vn by Fig. 1, and in thisinstance the drill point or tool is replaced by a head 50 which isremovably applied to the lower end of said spindle and has an opening 51extending centrally therethrough in alinement with the opening in thespindle, the spindle in both machines being hollow. Thehead 50 also hasa peripheral recess 52 with an overhanging flange 53 and pins 54extending outwardly therefrom at diametrically opposite points.

A die holder 55 is removably applied to the head 50 and consists mainlyof a body plate 56 having a die cavity 57 of suitable angular form inthe upper portion thereof and below the cavity is an opening 58 throughthe center of the body plate.

A flange 59 rises from the body plate and is formed with oppositebayonet slots 60 to receive the pins 54 for removably locking the dieholder to the head 50. Within the cavity 57 a screw-thread, cutting die61 of any suitable form is mounted and may be readily replaced byvarious dies simply by removing the holder 55 from the head 50 and thenreapplying the said holder. It will be observed that the die 61 is heldfirmly in position in the holder 55 by reason of the fact that thecavity 57 therefor is of greater dimensions than the opening 51 throughthe center of the head 50, and consequently the bottom portion of thehead adjacent to the opening 51 bears upon the die when the holder 55 isapplied to he head and prevents movement or displacement of the saiddie. The post 14 in this instance has two diametrically opposed slots6?. in the upper portion thereof above the spring and therein clampingdogs 63 are movably mounted, said dogs being pivoted at their upper endsto the post 14, as shown by Fig. 6, and movable inwardly to bringopposing straight faces or edges 64 thereof in engagement with a bolthead 65 of a bolt 66 adapted to be threaded or to have the threadsthereof recut. In this instance the screw-threaded end 40 has two barsor stop devices 67 extending across the lower end thereof to form a restfor the bolt head so that the straight engaging faces or edges 64 of thedogs 63 may be brought firmly and positively into engagement with thesaid bolt head to hold the bolt against turning during the threadcutting operation at the upper opposite extremity of the bolt. lChelower extremities of the dogs 63 are preferably longitudinally slottedas at 63 to loosely receive the upper ends of retractile springs 69secured at their lower ends on the post 1% below the position of thedogs, the post being cut away at a suiiicient distance to allow thesprings to have free play.

The dogs are held in clamping position within the post, as shown by Fig.6, by means of a ring or clamping sleeve 71 which loosely slipsdownwardly over the dogs, but when raised is caused to engage a screw--threaded surface 72 to hold the said ring or sleeve elevated, theinterior of the ring or sleeve being correspondingly screwthreaded. henthe ring or sleeve 71 is elevated or. released from the dogs 63, thesprings 69 instantly throw the dogs out wardly to fully clear theadjacent portion of the stem 40' so that the latter may be ad justedwithin the post when desired or when the dogs are not in use. It will beunderstood that the lower extremity of the stem 40 is slotted as at 73so that the dogs will have free movement inwardly and outwardly withrelation to both the post and the stem. The work support or table 41 inthis instance has an opening 7 a through the center thereof which isprovided by leaving the upper end of the. stem 40 fully open for thepurpose of readily inserting and withdrawing a bolt to be operated on bythe screw-thread cutting means hereinbefore described and as shownparticularly by Figs. 5, 7 and 8.

The operating lever mechanism for the post 14:, as hereinbeforeexplained and as shown by Fig. 3, is used with the modified constructionshown by Figs. 5 and 6, and it is proposed to replace the structureshown by Figs. 1, 2 and 3 by the post 1 carrying the dogs and the worksupport or table 41, as illustrated by Figs. 5 and 6.

From the foregoing the operation of the mechanism as an entirety will bereadily understood. The work in either form of the machine or device isdisposed on the support or table 41 and adjusted or elevated to themechanism above, and if a bolt is to be threaded the bolt is insertedthrough the support or table into the stem 40 and the post 1- 1-elevated to bring the upper extremity of the bolt on which the threadsare to be recut in engagement with the die 61. The die may be adjustedby any suitable means similar to the drill point 43, shown by Fig. 1,and as will be understood in the art of drill adjustments. The improvedmachine has a wide range of use, and in the form shown by Figs. 5, 6, 7and 8, wherein a drill may be readily substituted for the screw-threadcutting attachment, a complete mechanism will be provided that may bemanually operated and especially useful to farmers and others located ata distance from a machine or blacksmith shop.

It will be understood that changes inthe proportions, dimensions andminor details may be adopted without departing from the scope of theclaims.

What is claimed is:

1. In a device of the class specified. the combination of a work supportembodying a post having vertical movement, the post being longitudinallyslotted, a lifting lever extending through the longitudinally slottedportions of the post, a rocking lever, having one end connected to thelifting lever, a treadle means connected to the opposite end of therocking lever, a spring engaging the post, to permit the latter to haveyielding movement when elevated, and a mechanism arranged over the worksupport to operate on the work held by the latter. 1

2. In a device of the class specified, the combination of a work supportembodying a post having vertical movement, a lifting lever looselyextending through the post, a rocking lever having one end connected tothe lifting lever, a treadle means connected to the opposite end of therocking lever, a spring engaging the post above the lifting lever topermit the post to have yielding movement when held elevated, andmechanism disposed over the work support to operate on work held on saidsupport.

3. In a device of the class specified, the combination of a work supportembodying a tubular post and a table adjustably mounted in the upper endof the post, the post having a vertical slot therein, a lifting leverloosely extending through the post, devices for actuating the liftinglever to raise and lower the post, a spring engaging the post forpermitting the latter to have a yielding movement when raised, andmechanism disposed over the work support and comprising means foroperating on the Work on the support.

4:- In a device of the class specified, the combination of a worksupport embodying a post and a table, a lifting lever loosely extendingthrough the post, means connected to the lifting lever for operating thelatter to raise and lower the post, an antifrictional device movablymounted in the post and including a plug with a bolt extendingtherethrough, a spring on the post engaging the bolt at its lowerextremity, the post having a stop means for the upper extremity of thespring, the antifrictional device being engaged by the said liftinglever, and mechanism disposed over the work support and wardly throughand thereinto, the post having slots in opposite portions thereof,spring-actuated clamping dogs carried by the post and movable into thelatter, means for projecting the dogs into the post to engage the workheld by the support as an entirety, means for raising the post and worksupport, and mechanism disposed over the work support to operate on thework held on the support.

6. In a device or" the class specified, the combination of a worksupport embodying a hollow post and a table with an openingtherethrough, the work support and tubular post adapted to have the workpassed downwardly through and thereinto, spring-actuated clamping dog'scarried by and projectable into the post to hold work steady in thelatter, means for raising and lowering the post and table, and mechanismdisposed over the work support and embodying means for operating on thework held by the support. I

7 In a device of the class specified, the combination of a work supportcomprising a tubular post and a work table with a hollow stem adjustablymounted in said post, the

post and stem having slots in opposite portions thereof and the worksupport and stem adapted to have work inserted downwardly therethroughand thereinto,means forelevating the work support and post andindependent of the adjustment of the work table, spring-actuated dogspivotally mounted in the said slots and movable inwardly and outwardlywith relation to the post and stem, means for holding the dogs firmlyprojected inwardly in the post and stem to hold the work, and meansmounted over the work support to operate on the work held in the latter.

In testimony whereof we have hereunto set our hands in presence of twosubscribing witnesses.

CLARENCE B. WILLIAMS. IRA H. WILLIAMS.

Witnesses:

CHAS. S. HYER, SADIE STANFORD WHITE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

